False Peaks Suppression based on Cross-High-Order Spectral QR Decomposition Approach

Yu Ling Gao; Qing Huang; Bao Ming Yu; Xiao Tao Kang; Yao Wu Shi

doi:10.4028/www.scientific.net/AMR.403-408.177

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 403-408False Peaks Suppression based on Cross-High-Order...

False Peaks Suppression based on Cross-High-Order Spectral QR Decomposition Approach

Abstract:

In signal processing, a frequently encountered problem is harmonic retrieval in additive colored noise, especially false peaks existence in harmonic signal peaks. The purpose of this paper is to develop an efficient approach to clear the false peaks based on cross-high-order spectral QR decomposition approach. Simulation results indicate that spectral density curve is smooth without false peaks existence. The methods have better in resolving power and performance than previous MUSIC approach. Thus, this approach is ideally suited for harmonic retrieval in additive colored noise and short data conditions, and is also accurate to estimation signal parameter in hybrid colored noises.

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Periodical:

Advanced Materials Research (Volumes 403-408)

Pages:

177-181

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.403-408.177

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Online since:

November 2011

Authors:

Yu Ling Gao, Qing Huang, Bao Ming Yu, Xiao Tao Kang, Yao Wu Shi

Keywords:

Cross-High-Order, False Peaks Suppression, Harmonic Retrieval, Hybrid Colored Noises, QR Spectral Decomposition

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